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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 23 (1972), S. 272-278 
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Scaling of iron in O2—SO2-inert gas mixtures at 900 °C.Kinetic and metallorgraphic investigations into the oxidation of iron in O2So2-inert gas mixtures show, that SO2 increases the scaling rate of iron when the oxidation in the SO2 free gas follows a linear kinetic law; in these cases the transport of oxygen from the flowing medium to the specimen surface is the rat-controlling step. Such conditions exist at 900 °C and linear flow velocities of 5.8 cm/s at oxygen contents below about 7% At constant oxygen pressure the constant of the linear kinetic law is a linear function of the SO2.
    Notes: Kinetische und metallographische Untersuchungen über Oxydation von Eisen in O2—SO2,-Inertgas-Gemischen zeigen, daß SO2 die Verzunderungsgeschwindigkeit des Eisens erhöht, wenn die Oxydation im SO2-freien Gas nach einem linearen Zeitgesetz erfolgt, weil der Antransport des Sauerstoffs aus dem strömenden Gas an die Oberfläche der Probe geschwindigkeitsbestimmend ist. Bei 900°C und einer linearen Strömungsgeschwindigkeit der Gase von 5,8 cm/sec ist das bei O2-Gehalten Strömungsgeschwindigkeit der Gase von 5,8 cm/sec ist das bei O2-Gehalten kleiner etwa 7% der Fall. Bei konstantem
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
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